CN214367760U

CN214367760U - Highly integrated low-temperature stop valve with overflowing function

Info

Publication number: CN214367760U
Application number: CN202022722599.3U
Authority: CN
Inventors: 欧阳国法
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-10-08
Anticipated expiration: 2030-11-23

Abstract

The utility model provides a highly integrated integral type low temperature stop valve that takes function of overflowing, includes overflow valve subassembly, takeover, valve body, valve gap and hand wheel, the gomphosis is connected through straight thread and valve body to the overflow valve subassembly, realizes the minimization of gas cylinder connecting line and the maximize that the valve passed through the meridian, the one end of takeover with the valve body welding, the other end welds with gas cylinder pressure boost liquid outlet, the hand wheel with carry out threaded connection between the valve body, just the valve body with overflow between the valve subassembly the valve body adopts 45 structures of camber, makes the hand wheel realizes the 135 camber angle of maximum angle.

Description

Highly integrated low-temperature stop valve with overflowing function

Technical Field

The utility model belongs to the technical field of the valve, it relates to the automobile-used gas supply system's of liquefied natural gas turbocharging system, especially involves the connection structure who uses LNG to put out liquid stop valve and cross the flow valve as the pressurization on the truck of fuel, passenger train side gas supply system's the turbocharging system pipeline, concretely relates to highly integrated takes the integral type low temperature stop valve of overflowing the function.

Background

The gas supply system of the LNG automobile mainly comprises an LNG gas cylinder, a liquid feeding pipeline system, a liquid supply pipeline system, a self-pressurization pipeline system and the like. The self-pressurization pipeline system is used as an important part of an LNG vehicle gas supply system, and the conventional self-pressurization pipeline system comprises a pressurization stop valve, a flow passing valve, a pressurization regulating valve, an external booster (a vaporization assembly) and the like. The function is that when the pressure in the gas cylinder is too low, the low-temperature liquid in the gas cylinder is vaporized into gas through the external pressurization system and returns to the gas phase space at the top of the gas cylinder, so that the pressure in the gas cylinder is increased to meet the gas supply requirement of an automobile engine. The supercharger can vaporize the medium by adopting an air heat exchange or water bath heat exchange mode, and the supercharger and the gas cylinder are arranged on the same fixed support and form a complete closed system with the gas cylinder through a pipeline. Meanwhile, a pipeline for connecting the supercharger and the gas cylinder is required to be provided with a current limiting or automatic cutting device, and the current limiting or cutting device is arranged at a position which is not suitable for being impacted and is required to be effectively protected. In order to meet the functional and standard requirements of the system, the gas supply system in the current market is connected with a low-temperature stop valve at a pressurizing liquid outlet at the lower part of a vehicle gas cylinder, and in order to meet the space requirement of a whole vehicle of a host factory, an internal and external NPT threaded joint is adopted at the outlet of the low-temperature stop valve to install the overflow valve. The system has the following problems in the use process:

1. the opening and closing of the conventional self-pressurization system are realized by manually operating a pressurization stop valve, the installation position of the pressurization stop valve is arranged at the lower part of a gas cylinder, the installation position of the gas cylinder is limited, the operation space is small, a valve body of the pressurization liquid outlet stop valve is easy to freeze, and the problems of easy frostbite, damage and the like during operation are solved; 2. The position of the hand wheel faces to the right upper side, and the gap between the position of the hand wheel and the position of the gas cylinder end socket is small, so that frequent operation required by gas cylinder pressurization is not facilitated; 3. the stop valve and the overflow valve are independently arranged on the self-pressurization pipeline, and are connected by adopting a 90-degree conversion joint due to space limitation, so that the structure is complex, the space occupation is large, the cost is high, and the leakage risk of a plurality of leakage points exists; 4. the 90-degree conversion joint has small drift diameter and large pipe resistance of multiple parts, so that the problems of low gas cylinder pressurization speed, unsatisfactory pressurization effect and the like are caused; 5. the required cost of labor of the split type structure of multicomponent in the equipment process of prepareeing material is higher, and the cost of independent purchase is too high, and the required energy of each process management and control is too big, and efficiency is lower, does not conform to the efficient operation of modern enterprise production.

The stop valve related to patent numbers 201220593437.7 and 201820363445.X has a complex structure, a heavy appearance and a single function, cannot realize a multifunctional, integrated and integrated modular structure, has high product cost, large appearance of the stop valve, and cannot be applied to a wide field such as an automotive LNG (liquefied natural gas) supply system with high requirements on space and valve quality due to factors such as difficulty in after-sale maintenance caused by excessive bolt connection.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model provides an overcome the defect among the prior art, provide a brand-new, safe, breakthrough low temperature stop valve that the function overflows in area, have high integration, realize the integration of stop valve, integrate, multi-functional, the pressure boost that can solve current gas supply system pressure boost pipeline goes out liquid stop valve and the structure of excess flow valve is complicated, easily interfere, lead to the pressure boost effect poor, the leakage point is more, be unfavorable for the problem of operation, cost of labor and purchasing cost are too high.

The technical solution of the utility model is that: the utility model provides a highly integrated integral type low temperature stop valve that takes function of overflowing, includes overflow valve subassembly, takeover, valve body, valve gap and hand wheel, the gomphosis is connected through straight thread and valve body to the overflow valve subassembly, realizes the minimization of gas cylinder connecting line and the maximize that the valve passed through the meridian, the one end of takeover with the valve body welding, the other end welds with gas cylinder pressure boost liquid outlet, the hand wheel with carry out threaded connection between the valve body, just the valve body with overflow between the valve subassembly the valve body adopts 45 structures of camber, makes the hand wheel realizes the 135 camber angle of maximum angle.

The utility model discloses a further improvement lies in: the overflowing valve assembly comprises an overflowing connector, an overflowing spring and a bullet head, wherein the overflowing spring and the bullet head are arranged in the overflowing connector, the overflowing spring is annularly arranged on the periphery of the bullet head, and the top of the overflowing connector is in threaded connection with the valve body.

The utility model discloses a further improvement lies in: be equipped with valve rod and valve clack in the valve body, the one end of valve gap is inlayed and is established in the valve body top, the inside valve rod mounting hole that is provided with of valve clack, valve rod one end sets up in the valve rod mounting hole, and the other end passes the valve gap, inlays and establishes to the hand wheel in.

The utility model discloses a further improvement lies in: the hand wheel is provided with a mounting groove, a spring is arranged in the mounting groove, a nameplate is arranged above the spring, a bushing is sleeved at the end part of the valve rod, a liner used for compressing the nameplate is arranged at the top of the bushing, and a locking nut used for compressing the bushing is further arranged at the end part of the valve rod.

The utility model discloses a further improvement lies in: and a sealing gasket is arranged at the joint of the valve body and the hand wheel.

The utility model discloses a further improvement lies in: and a gasket is arranged at the embedded part of the top end of the overflowing joint and the valve body.

The utility model provides a highly integrated integral type low temperature stop valve of taking the overflowing function that highly integrates that it adopts 135 degrees hand wheel camber structure takes the overflowing function's integral type low temperature stop valve to integrate each individual spare part, breaks through current structural style, and the design of highly integrated makes it structural performance unchangeable, ensures system security, realizes meeting the stop valve that the required but overflowing supercharging on the existing supercharging system pipeline acted on; by reducing NPT transition joints and integrating design, the internal drift diameter of the valve is increased on the premise of smaller appearance, and the pressurization effect is improved; from the perspective of a user, the hand wheel is tilted outwards by an angle of 45 degrees, so that the operation is more humanized and simpler and more convenient; the integrated modular low-temperature stop valve has the advantages that integration, modularization and mass material supply are realized, the problems that a pressurizing liquid outlet stop valve and a flow-passing valve are complex in structure, large in occupied space, complex in installation, easy to interfere, easy to leak due to excessive joint and the like are solved, and the novel multifunctional integrated low-temperature stop valve with larger drift diameter, breakthrough performance and humanization is realized.

The utility model has the advantages that: its simple structure, reasonable in design, through the structure of the high integrated integral type of multicomponent, carry out multi-functional modularization research and development on the basis of stop valve single function, realize with low costs, compact structure, the performance is more excellent, the operation of being convenient for, simultaneously, increase the inside latus rectum of valve body, promote the pressure boost effect, guarantee that system's wholeness can be safe and reliable more, design more humanized, especially, this system simple structure, the commonality is high, and the cost is lower, and simple to operate need not the workshop stock, promotes production efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

wherein: 1-connecting pipe, 2-valve body, 3-valve cover, 4-handwheel, 5-overflowing joint, 6-overflowing spring, 7-bullet, 8-valve rod, 9-valve clack, 10-spring, 11-nameplate, 12-bush, 13-gasket, 14-locking nut, 15-sealing gasket and 16-gasket.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

As shown in the figure: the technical solution of the embodiment is as follows: a highly integrated low-temperature stop valve with an overflowing function comprises an overflowing valve assembly, a connecting pipe 1, a valve body 2, a valve cover 3 and a hand wheel 4, wherein the overflowing valve assembly comprises an overflowing joint 5, an overflowing spring 6 and a bullet head 7, the overflowing spring 6 is arranged in the overflowing joint 5 in a surrounding mode, the bullet head 7 is arranged on the periphery of the overflowing spring 6 in a surrounding mode, the structure is an assembly for connecting the valve body 1 and an overflowing valve, liquid flow supercharging efficiency is improved, the top of the overflowing joint 5 and the valve body 2 are connected and embedded through straight threads, the shortest connecting pipeline of a gas cylinder and the maximum passing through of a valve are achieved, liquid flow is increased while the requirements of regulations are met, and the protection and optimization effects of the integrated stop valve on a supercharging system pipeline are achieved through the overflowing valve assembly; one end of the connecting pipe 1 is welded with the valve body 2, and the other end of the connecting pipe is welded with a gas cylinder pressurization liquid outlet, so that the connecting mode is simple and reliable, and the connecting function of the integrated stop valve and the gas cylinder is realized through the connecting pipe 1; the hand wheel 4 with carry out threaded connection between the valve body 2, just the valve body 2 with between the excess flow valve subassembly the valve body 2 adopts the 45 structures of camber, makes the hand wheel 4 realizes the camber angle of maximum angle 135, and this structure makes the switching of stop valve more humanized.

Still be equipped with valve rod 8 and valve clack 9 in the valve body 2, the one end of valve gap 3 is inlayed and is established in valve body 2 top, the inside valve rod mounting hole that is provided with of valve clack 9, 8 one ends of valve rod set up in the valve rod mounting hole, and the other end passes valve gap 3, inlays and establishes to hand wheel 4 in, be provided with the mounting groove on the hand wheel 4, be provided with spring 10 in the mounting groove, spring 10 top is provided with data plate 11, 8 tip covers of valve rod are equipped with bush 12, bush 12 top is provided with the liner 13 that is used for compressing tightly data plate 11, 8 tip of valve rod still is provided with lock nut 14 that is used for compressing tightly bush 12. And a sealing gasket 15 is arranged at the joint of the valve body 2 and the hand wheel 4, and a gasket 16 is arranged at the embedded part of the top end of the overflowing joint 5 and the valve body 2.

According to the highly-integrated low-temperature stop valve with the overflowing function, the highly-integrated low-temperature stop valve with the overflowing function, which is of a 135-degree hand wheel outward-inclined structure, is adopted to integrate each independent part, the existing structural form and the highly-integrated design are broken through, the structural performance is unchanged, the system safety is ensured, and the stop valve which meets the requirements of the existing pressurization system pipeline and has the overflowing and pressurizing effects is realized; by reducing NPT transition joints and integrating design, the internal drift diameter of the valve is increased on the premise of smaller appearance, and the pressurization effect is improved; from the perspective of a user, the hand wheel is tilted outwards by an angle of 45 degrees, so that the operation is more humanized and simpler and more convenient; the integrated modular low-temperature stop valve has the advantages that integration, modularization and mass material supply are realized, the problems that a pressurizing liquid outlet stop valve and a flow-passing valve are complex in structure, large in occupied space, complex in installation, easy to interfere, easy to leak due to excessive joint and the like are solved, and the novel multifunctional integrated low-temperature stop valve with larger drift diameter, breakthrough performance and humanization is realized.

The beneficial effect of this embodiment is: its simple structure, reasonable in design, through the structure of the high integrated integral type of multicomponent, carry out multi-functional modularization research and development on the basis of stop valve single function, realize with low costs, compact structure, the performance is more excellent, the operation of being convenient for, simultaneously, increase the inside latus rectum of valve body, promote the pressure boost effect, guarantee that system's wholeness can be safe and reliable more, design more humanized, especially, this system simple structure, the commonality is high, and the cost is lower, and simple to operate need not the workshop stock, promotes production efficiency.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a highly integrated integral type low temperature stop valve that area overflows function which characterized in that: including overflowing valve module, takeover, valve body, valve gap and hand wheel, the gomphosis is connected through straight thread and valve body to the valve body subassembly, realizes the shortest of gas cylinder connecting line and the maximize that the valve passed through the meridian, the one end of takeover with the valve body welding, the other end welds with gas cylinder pressure boost liquid outlet, the hand wheel with carry out threaded connection between the valve body, just the valve body with between overflowing valve module the valve body adopts 45 structures of camber, makes the hand wheel realizes the camber angle of 135 of maximum angle.

2. The highly-integrated low-temperature stop valve with the overflowing function of claim 1, which is characterized in that: the overflowing valve assembly comprises an overflowing connector, an overflowing spring and a bullet head, wherein the overflowing spring and the bullet head are arranged in the overflowing connector, the overflowing spring is annularly arranged on the periphery of the bullet head, and the top of the overflowing connector is in threaded connection with the valve body.

3. The highly-integrated low-temperature stop valve with the overflowing function of claim 1, which is characterized in that: be equipped with valve rod and valve clack in the valve body, the one end of valve gap is inlayed and is established in the valve body top, the inside valve rod mounting hole that is provided with of valve clack, valve rod one end sets up in the valve rod mounting hole, and the other end passes the valve gap, inlays and establishes to the hand wheel in.

4. The highly-integrated low-temperature stop valve with the overflowing function of claim 3, wherein: the hand wheel is provided with a mounting groove, a spring is arranged in the mounting groove, a nameplate is arranged above the spring, a bushing is sleeved at the end part of the valve rod, a liner used for compressing the nameplate is arranged at the top of the bushing, and a locking nut used for compressing the bushing is further arranged at the end part of the valve rod.

5. The highly-integrated low-temperature stop valve with the overflowing function of claim 1, which is characterized in that: and a sealing gasket is arranged at the joint of the valve body and the hand wheel.

6. The highly-integrated low-temperature stop valve with the overflowing function of claim 2, characterized in that: and a gasket is arranged at the embedded part of the top end of the overflowing joint and the valve body.